版本升级几乎结束了，我得到的错误如下：
web[o.s.s.d.m.PlatformDatabaseMigration] Starting DB Migration
2016.09.03 20:59:14 INFO web[DbMigration] == DropTableGraphs: migrating ================================================
2016.09.03 20:59:14 INFO web[DbMigration] -- remove_index("graphs", {:name=>"graphs_perspectives"})
2016.09.03 20:59:14 INFO web[o.s.s.d.m.PlatformDatabaseMigration] DB migration failed | time=2879ms
2016.09.03 20:59:14 ERROR web[o.s.s.d.m.PlatformDatabaseMigration] DB Migration or container restart failed. Process ended with an exception
org.jruby.exceptions.RaiseException: (StandardError) An error has
occurred, all later migrations canceled:
Table 'sonar.graphs' doesn't exist
我正处于迁移的中间，并且不知道必须进一步做些什么。 我很感激能得到的任何帮助！